Question

find the answer of this question

Answer 1

${(x - \frac{1}{x}) }^{2} = {5}^{2} \\ {x}^{2} + \frac{1}{ {x}^{2} } - 2 = 25 \\ {x}^{2} + \frac{1}{{x}^{2} } = 27$
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